Quote:
Originally Posted by Hawkeye's-911T
Maybe, I am missing something. I know it's a bit late now, but why wouldn't or shouldn't a rev limiter of some sort be retro-fitted to help cut down on the chances of engine damage on an iconic piece of machinery (replica or not).
Cheers
JB
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JB,
It is a mechanical over-rev, not done by adding more gas in a given gear, which could be stopped by a rev limiter, rather than by shifting in a gear that is too low for the speed of the vehicle.
A common missed shift that results in engine damage on a classic 911 is:
Coming out of a turn doing 90 mph in 3rd, wanting to upshift to 4th. You are going hard in the turn still (a right turn) and your slightly shifted seating position now has you DOWN shift to 2nd by accident. 90mph in second is >10k rpm. You let the clutch out, the valves start floating and the pistons will hit the exhaust valves. You limp back to the pits ...
G